| 경계조건에 따른 고강도 H형강 부정정 보부재의 해석적 내화성능 연구 |
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권인규 |
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강원대학교 소방방재학부 |
| Study on Fire Resistance Performance According to Boundary Conditions for Beams Made of High-Strength Structural Steels Using Analytical Methods |
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Kwon In-Kyu |
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Department of Fire Protection Engineering, Kangwon National University |
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| 요약 |
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건축물의 공간 효율성 증대를 주 목적으로 고강재 강재(SM 520)의 사용이 활성화되고 있으나, 화재와 같은 고온조건에서의 보부재에 대한 내화성능은 검증되지 못하고 있는 실정이다. 따라서 본 연구에서는 SM 520강재가 적용된 양단 고정단 경계조건인 부정정 보부재를 대상으로 표준화재온도곡선과 고온에서의 항복강도, 탄성계수 그리고 비열, 선팽창계수를 적용하는 해석적 방법을 통하여 내화성능을 평가하고, 이를 바탕으로 일반 구조용 강재에 의한 보부재의 내화성능 평가의 안전성을 확인하였다. |
| Abstract |
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Recently, structural materials have been developed to have high performance, and SM 520 has been developed and used for high-rise buildings. However, fires frequently occur in buildings, and the number of victims and amount of damage increase year by year. However, the evaluation of fire resistance performance for structural beams made of SM 520 is done with specimens made of ordinary structural steels with boundary conditions of a fixed beam, and the results are allowed for use in steel-framed buildings. This study analyzed the fire resistance performance of statistically indeterminate beams built with SM 520. The analysis used a fire engineering technique that includes mechanical and thermal data of SM 520 and heat transfer theory, and heat stress analysis was also conducted. The results from the analysis were compared with those from a statistically determinate beam made of ordinary structural steels. |
| Key Words:
High strength steels, SM 520, Fire resistance performance, Fire design |
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